VEGA VEGAMET 624 - Manual (Page 48)

48
11 Supplement
VEGAMET 624 • 4 … 20 mA/HART
28969-EN-130701
Relay outputs
Quantity
3 x operating relay, 1 x fail safe relay
Function Switching relay for level or pulse relay for flow/sampling
pulse
Contact Floating spdt
Contact material AgSnO2, hard gold-plated
Switching voltage min. 10 mV DC, max. 250 V AC/DC
Switching current min. 10 µA DC, max. 3 A AC, 1 A DC
Breaking capacity min. 50 mW, max. 750 VA, max. 40 W DC (with U less
than 40 V) 1)
Min. programmable switching hysteresis 0.1 %
Ʋ Fault signal (switch over) Switching condition off; unchanged
Mode pulse output
Ʋ Pulse length 350 ms
Current outputs
Quantity
3 x outputs
Function Current output for level or flow/sampling pulse
Range 0/4 … 20 mA, 20 … 0/4 mA
Resolution 1 µA
Max. load 500 Ω
Fault signal (switch over) 0; 3,6; 4; 20; 20.5; 22 mA, unchanged
Accuracy ±20 µA (0.1 % of 20 mA)
Temperature error relating to 20 mA 0.005 %/K
Mode pulse output
Ʋ Voltage pulse 12 V DC at 20 mA with load 600 Ω
Ʋ Pulse length 200 ms
I²C interface for VEGACONNECT
Quantity
1 x on front plate
Plug connection I²C socket 4-pole for VEGACONNECT
Ethernet interface (optional)
Quantity
1 x, cannot be combined with RS232
Data transmission 10/100 MBit
Plug connection RJ45
Max. cable length 100 m (3937 in)
RS232 interface (optional)
Quantity
1 x, cannot be combined with Ethernet
Plug connection RJ45 (modem connection cable on 9-pole D-SUB in the
scope of delivery)
Max. cable length 15 m (590 in)